How to trade with myself

pokemon ultra sun need help

click this link
https://www.youtube.com/watch?v=w8cOYfNBOOw

I believe you can open two games at once with citra, so just do that. Unless you want to trade with a physical 3ds system, then i can’t help you there. (if you’re planning on trading hacked pokemon to a physical copy, i wouldn’t recommend it)